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HBM
WebGPUEnterprise

Memory verified.

Measured 27 September 2026 at 22:41 UTC on Safari 26, iOS by OP-3E45B0.

MEM Score23.0
Percentile
Top 45 %
of 9 verified runs in class
Device class
iPhone
LPDDR, peak not published
Read27.4GB/s
Write28.7GB/s
Copy27.3GB/s
Random access3.80 GB/s0.24 G reads/s
Latency proxy380 ns
Sustain27.4 GB/s100 % held over 18 s
AI decode ceiling

6.8tokens/s, 8B model at 4-bit

0.8 tokens/s at 70B, if it fits. Upper bound

READWRITECOPYSUSTAINMEMPRINT / 261100
Memprint: drawn from this run's measurements only.
  • Sized for a phone: a smaller working set that still outruns every cache on the chip.
Timing
GPU timestamps
Working set
2 × 128 MiB
Data moved
880 GB
Duration
48.1 s
Stack position
Layer 002, die 42 of 64
Run
b3ry9qh9tf
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